## Ultrasound beam width

Point load surcharges applied at a setback distance greater than 1H. A 15 ft Retaining Wall with a 16" thick footing ( H=16.33') has a point load surcharge of 4 kips at 21 ft setback (x=21'). Most designers will say X > H, so there is no surcharge influence. Looking at the chart above, you can see 20 psf surcharge.Design Example 1 demonstrates design of the superstructure and bearings for a single span cast-in-place post-tensioned concrete box girder bridge using LRFD. Critical dimensions and loads are repeated here for ease of reference. Bridge Geometry Bridge span length 160.00 ft Bridge width 44.83 ft Roadway width 42.00 ft Loads

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Note: The retaining wall designs on the enclosed design tables were performed using the National Concrete Masonry As-sociation (NCMA) SRWall 3.2 retaining wall design software. The home owner/conTracTor is Then faced wiTh The problems of: • Finding an engineer willing to engineer a segmental (SrW) mechanically stabilized This manual presents the techniques used by Allan Block in our engineering practice to design retaining walls. It is not intended as a textbook of soil mechanics or geotechnical engineering.

Design of Cantilever Retaining Wall: Example 2. 2 Prof. Dr. Qaisar Ali CE-416: Reinforced Concrete Design -II Department of Civil Engineering, University of Engineering and Technology Peshawar Objectives At end of this lecture, students will be able to ... 400 lb/ft2 (Live load surcharge) 14conclude that the total cost of the retaining wall is directly proportional to the wall height and surcharge load values, whereas, the cost is almost independent of coefficient of friction. Keywords: Eurocode 2 (EC2), Evolutionary method, Excel Solver, Reinforced concrete, Retaining wall, Optimization. Introduction